/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineLeaderboardInterface.h
virtual [FDelegateHandle](API\Runtime\Core\Delegates\FDelegateHandle) AddOnLeaderboardReadCompleteDelegate_Handle ( const [FOnLeaderboardReadCompleteDelegate](API\Plugins\OnlineSubsystem\Interfaces\FOnLeaderboardReadCompleteDelega-) & Delegate )